diff options
| author | Johan Hovold <jhovold@gmail.com> | 2013-11-12 15:09:44 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-11-13 12:09:21 +0900 |
| commit | 5ada4550e86b081b889bced50e5ab6c510f9cdd7 (patch) | |
| tree | 3797c038a7e6c3c18a04ab2561cc83fa344c85fa /drivers | |
| parent | 7bb8abe6ed58835c58153d59e4b13513b7306802 (diff) | |
| download | linux-5ada4550e86b081b889bced50e5ab6c510f9cdd7.tar.bz2 | |
backlight: atmel-pwm-bl: use gpio_is_valid
Use gpio_is_valid rather than open coding the more restrictive != -1
test.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/video/backlight/atmel-pwm-bl.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/video/backlight/atmel-pwm-bl.c b/drivers/video/backlight/atmel-pwm-bl.c index bfd6a9680936..c2542095a04c 100644 --- a/drivers/video/backlight/atmel-pwm-bl.c +++ b/drivers/video/backlight/atmel-pwm-bl.c @@ -48,7 +48,7 @@ static int atmel_pwm_bl_set_intensity(struct backlight_device *bd) pwm_duty = pwmbl->pdata->pwm_duty_min; if (!intensity) { - if (pwmbl->gpio_on != -1) { + if (gpio_is_valid(pwmbl->gpio_on)) { gpio_set_value(pwmbl->gpio_on, 0 ^ pwmbl->pdata->on_active_low); } @@ -57,7 +57,7 @@ static int atmel_pwm_bl_set_intensity(struct backlight_device *bd) } else { pwm_channel_enable(&pwmbl->pwmc); pwm_channel_writel(&pwmbl->pwmc, PWM_CUPD, pwm_duty); - if (pwmbl->gpio_on != -1) { + if (gpio_is_valid(pwmbl->gpio_on)) { gpio_set_value(pwmbl->gpio_on, 1 ^ pwmbl->pdata->on_active_low); } @@ -146,7 +146,7 @@ static int atmel_pwm_bl_probe(struct platform_device *pdev) if (retval) return retval; - if (pwmbl->gpio_on != -1) { + if (gpio_is_valid(pwmbl->gpio_on)) { retval = devm_gpio_request(&pdev->dev, pwmbl->gpio_on, "gpio_atmel_pwm_bl"); if (retval) @@ -196,7 +196,7 @@ static int atmel_pwm_bl_remove(struct platform_device *pdev) { struct atmel_pwm_bl *pwmbl = platform_get_drvdata(pdev); - if (pwmbl->gpio_on != -1) { + if (gpio_is_valid(pwmbl->gpio_on)) { gpio_set_value(pwmbl->gpio_on, 0 ^ pwmbl->pdata->on_active_low); } |